8.8 Earthquake in Japan

8.8 Earthquake in Japan

LennyLen

Member #5,313

December 2004

decepto said:

Gnolam... do you have a Geiger counter in your apartment?

What? Are you saying that you don't?

gnolam

Member #2,030

March 2002

decepto said:

Gnolam... do you have a Geiger counter in your apartment?

If so, that's badass. 8-)

Doesn't everyone?
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(That's my good one, on loan from ~~REDACTED~~ for this project)

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ImLeftFooted

Member #3,935

October 2003

All over the world people are trusting the ocean as if nothing has happened:
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http://seasteading.org/
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How is my posting?

Thomas Fjellstrom

Member #476

June 2000

Yeah, because an earthquake and tsunami that just happened has something to do with a hotel built years ago.

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gnolam

Member #2,030

March 2002

William Gibson said:

Western media in race against time; hysterical nuclear bullshit nearing critical meltdown, yet millions are still uncontaminated.

Also, XKCD:
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[EDIT]
Hah. The allegro.cc image cache reencodes that PNG to JPG, leading to not just a general quality loss, but also an 850 KiB bloat.

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type568

Member #8,381

March 2007

Thanks molang, quite interesting.. Really.

Vanneto

Member #8,643

May 2007

I agree with pyte856, that graph is quote informative.

In capitalist America bank robs you.

BAF

Member #2,981

December 2002

Why the fuck is everyone typing names backwards?

BAF.zone | SantaHack!

LennyLen

Member #5,313

December 2004

Hush now FABio.

gnolam

Member #2,030

March 2002

Another visualization: http://www.targetmap.com/viewer.aspx?reportId=4870

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Dennis

Member #1,090

July 2003

BAF said:

Why the fuck is everyone typing names backwards?

They weren't. As everyone can see, gnolam backwards is malong, not molang as type568 wrote and Vanneto also did't write 865epyt but pyte856. So none of that was either name backwards. Dog forgive me, I have sinneD.

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type568

Member #8,381

March 2007

Dennis said:

Dog forgive me

I'm K.O.ed.. That's far beyond a lol

append:

Forgive me believers..

Append1:
These numbers in nGy/h don't really tell me much, since all my understanding of these dozes is from your previous chart which used another unit

Striker

Member #10,701

February 2009

Thomas Fjellstrom : "tsunami that just happened"

That wasn't the first tsunami.

gnolam

Member #2,030

March 2002

The Boston Globe has done several "Big Picture" features on the disaster:
Massive earthquake hits Japan
Japan: earthquake aftermath
Japan: Vast devastation
Japan: New fears as the tragedy deepens
Japan: Continuing crisis
Japan: Hopes fade for finding more survivors
Japan: One week later

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type568

Member #8,381

March 2007

ehT doG sah esnes fo romuh..

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& thanks again..

Don Freeman

Member #5,110

October 2004

That was pretty awesome that the road was split right where the yellow line is hahaha!

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gnolam

Member #2,030

March 2002

type568 said:

These numbers in nGy/h don't really tell me much, since all my understanding of these dozes is from your previous chart which used another unit

The sievert (Sv) is just a weighted version of the gray (Gy), which in turn is just shorthand for J/kg (absorbed dose). You multiply the absorbed dose with a quality factor for the type of radiation (for the same absorbed energy, alpha is much more damaging than gamma, for example) and another factor for the type of tissue it has been absorbed by (not relevant here) to get an equivalent dose, that takes the radiation's biological effects into account. So for gamma and beta radiation, they're the same (quality factor of 1).

[EDIT]
Whether it's just shifting winds or related to the smoke from reactor building #3, radiation levels have spiked in Ibaraki again.
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miran

Member #2,407

June 2002

gnolam said:

for example, the background gamma in my apartment right now is 0.18 µSv/h

The radiation here is 0.07µSv/h right now and I sit less than 100m from a working reactor. If I lean back in my chair I can see the reactor building from my window.

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Polybios

Member #12,293

October 2010

While the general radiation level might not be a problem I think there is one if you eat/drink/inhale radioactive isotopes, which remain in your body, because they are being treated like other substances.

Quote:

Villagers living near the plant have been told not to drink tap water due to higher levels of radioactive iodine.

I've never heard that long flights and most other things on your chart caused such problems...

OICW

Member #4,069

November 2003

Polybios said:

I've never heard that long flights and most other things on your chart caused such problems...

Of course they do. You are less protected by the atmosphere.

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type568

Member #8,381

March 2007

OICW said:

Of course they do. You are less protected by the atmosphere.

Oh, nice.. So I guess flying during the night means it is "safer"?

Furthermore.. Poor cosmonauts..

miran

Member #2,407

June 2002

type568 said:

So I guess flying during the night means it is "safer"?

I would guess not by much if at all.

Quote:

Furthermore.. Poor cosmonauts..

Exactly. That's one of the main non-political reasons no one has been to Mars yet.

And poor pilots. And flight attendants.

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OICW

Member #4,069

November 2003

type568 said:

Oh, nice.. So I guess flying during the night means it is "safer"?

Probably yes, because you don't get direct Sun radiation. But then again all other cosmic rays are incoming from all directions.

gnolam

Member #2,030

March 2002

Polybios said:

Yes.
Internal radiation (radiation that originats from within the body) is always worse than external radiation. One reason is simply the penetration capability - alpha radiation is stopped by the skin, so it's considered harmless (well, it can damage the corneas) unless the emitter actually enters the body. Beta can be effectively shielded against just through thick clothing.
Another reason is, as you say, that they can remain in the body. Some elements are flushed right out, but others can be taken up by various tissues. Iodine, for example, is taken up by the thyroid^[1], cesium by soft tissues, and strontium by bone.

(For this reason, data sheets for radionuclides usually contain cumulative equivalent doses for inhalation and ingestion (separately), expressed in Sv/Bq. This takes into account all the relevant factors - quality factor, tissue weighting factor (as determined for where in the body it ends up), biological half-life, etc)

Quote:

I've never heard that long flights and most other things on your chart caused such problems...

Cosmic radiation increases with altitude. After miners (who inhale a lot of radon), airplane personnel receive the highest average dose of any profession in this country.
For more info, see for example http://www.hps.org/publicinformation/ate/faqs/commercialflights.html (USian site, so naturally they're using archaic units, but just divide all the mrem figures by 100 to get them in mSv)

type568 said:

Oh, nice.. So I guess flying during the night means it is "safer"?

Nah. The cosmic rays in question are extrasolar.

References

This is why potassium iodide is being distributed - by flooding the body with stable iodine (¹²⁷I), you stop the thyroid from taking up the radioactive ¹³¹I.

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LennyLen

Member #5,313

December 2004

Don Freeman said:

That was pretty awesome that the road was split right where the yellow line is hahaha!

That happened with quite a few of the roads here too. There is even a bridge where one side collapsed and fell into the river, while the other was fine. It was right down the lane line as well.